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AWS E33-31 vs. EN 1.4887 Stainless Steel

Both AWS E33-31 and EN 1.4887 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is AWS E33-31 and the bottom bar is EN 1.4887 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 29
45
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
76
Tensile Strength: Ultimate (UTS), MPa 810
580

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1380
1390
Melting Onset (Solidus), °C 1330
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 14
15

Otherwise Unclassified Properties

Base Metal Price, % relative 36
39
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 6.0
6.7
Embodied Energy, MJ/kg 86
96
Embodied Water, L/kg 260
210

Common Calculations

PREN (Pitting Resistance) 44
22
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
20
Strength to Weight: Bending, points 24
19
Thermal Shock Resistance, points 19
14

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 31 to 35
20 to 23
Copper (Cu), % 0.4 to 0.8
0
Iron (Fe), % 24.7 to 34.8
34.2 to 45
Manganese (Mn), % 2.5 to 4.0
0 to 2.0
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 30 to 32
33 to 37
Niobium (Nb), % 0
1.0 to 1.5
Nitrogen (N), % 0.3 to 0.5
0 to 0.1
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.9
1.0 to 2.0
Sulfur (S), % 0 to 0.010
0 to 0.015